A1 noun 中性 #2,715 最常用

硬度

kōdo /koːdo/

Hardness refers to the degree or level of how hard a material is, often measured scientifically. It is commonly used to describe the physical properties of minerals, metals, or the mineral content in water (water hardness).

例句

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1

この地域の水道水は硬度が高いです。

The tap water in this area has high hardness.

2

製品の品質を保つために、金属の硬度を測定します。

To maintain product quality, we measure the hardness of the metal.

3

この石、硬度がすごくて全然削れないよ。

This stone is so hard (high hardness) that I can't scrape it at all.

词族

名词
硬度
Verb
硬化する
副词
硬く
形容词
硬い
相关
硬化剤
💡

记忆技巧

The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).

快速测验

ダイヤモンドはすべての鉱物の中で最高の___を誇る。

正确!

正确答案是: 硬度

例句

1

この地域の水道水は硬度が高いです。

everyday

The tap water in this area has high hardness.

2

製品の品質を保つために、金属の硬度を測定します。

formal

To maintain product quality, we measure the hardness of the metal.

3

この石、硬度がすごくて全然削れないよ。

informal

This stone is so hard (high hardness) that I can't scrape it at all.

4

モース硬度は、鉱物の引っかき傷に対する耐性を示す尺度である。

academic

The Mohs scale of hardness is a measure indicating a mineral's resistance to scratching.

5

弊社は、硬度1000以上の超硬材料を専門に扱っております。

business

Our company specializes in cemented carbide materials with a hardness of over 1000.

词族

名词
硬度
Verb
硬化する
副词
硬く
形容词
硬い
相关
硬化剤

常见搭配

硬度が高い to be high in hardness
硬度を測る to measure hardness
水の硬度 water hardness
硬度計 hardness tester
モース硬度 Mohs hardness

常用短语

硬度成分

hardness components (minerals in water)

鉛筆硬度

pencil hardness (used for coatings)

ビッカース硬度

Vickers hardness

容易混淆的词

硬度 vs 高度

Pronounced the same (kōdo), but '高度' means altitude or high-level, whereas '硬度' means hardness.

硬度 vs 硬さ

'Katasa' is a general word for hardness used in daily life, while 'Kōdo' is the technical/scientific term.

📝

使用说明

Use 'kōdo' when discussing technical specifications, water quality reports, or mineralogy. In casual conversation about how hard an object feels to the touch, 'katasa' is more natural.

⚠️

常见错误

The most common mistake for learners is writing the kanji for altitude (高度) instead of hardness (硬度) because they share the same reading.

💡

记忆技巧

The first kanji 硬 (hard) contains the radical for stone (石). Think of measuring the 'degree' (度) of a 'stone' (石).

📖

词源

A Sino-Japanese compound (kango) consisting of 硬 (hard/stiff) and 度 (degree/limit/measure).

语法模式

Used as a noun followed by the particle 'が' or 'を'. Commonly follows '水の' (water's) or '金属の' (metal's).
🌍

文化背景

Water hardness is a frequent topic in Japan because Japanese tap water is almost exclusively soft water, which affects the taste of tea and rice.

快速测验

ダイヤモンドはすべての鉱物の中で最高の___を誇る。

正确!

正确答案是: 硬度

相关词

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